球晶材料的TEM—EDAX剖析  

The TEM-EDAX Analysis of Spherulite Material

作　　者：张干城[1] 王开泰[1] 李汉良[1] 沈定坤[1] 

机构地区：[1]中国科学院上海硅酸盐研究所,上海200050

出　　处：《无机材料学报》1997年第5期659-664,共6页Journal of Inorganic Materials

摘　　要：观察了R2O－RO－Al2O3-SiO2系某一整体析出球晶的微晶玻璃中球晶的生长过程．获得随着晶化时间的增加或晶化温度升高，球晶直径增大；但球晶数目保持不变．发现了核化温度与球晶直径关系呈抛物线型．以TEM－EDAX剖析了球晶的雏型内部和近邻玻璃基体的显微结构及其演变．清楚地揭示了球晶生长过程中所发生的组成变化．The spherulite growing process was observed in a glass-ceraimes which consists of crystals, being in the shape of spherulites in the R2O-RO-Al2O3-SiO2 system. It was obtained that spherulite diameter increases with the increase of crystallization time or the elevation of crystallisation temperature, however the number of the spherulites maintains unchanged. Also it was discovered that the relationship between spherulite diameter and nucleation temperature is a parabola type. The microstructure and its variation of inside of spherulite embryo and surrounding glass matrix were analyzed by TEM and EDAX. The component change in the spherulite growing process was revealed clearly.

关 键 词：球晶 微晶玻璃 显微结构 玻璃 晶化 TEM-EDAX法 

分 类 号：TQ171.733[化学工程—玻璃工业] TQ171.1[化学工程—硅酸盐工业]